Some of the early builds had the ampless tweeter less stereo which is
a POS. They went back to the Hi Fi stereo for the bottom level unit in the
US in Sept of 2010 but some still got through with that unit. If you don't want to modify the stereo be sure to get the L7 . If you do want to modify the stereo
the Hi Fi is much easier to modify than the base stereo.
All the 2010's had the base stereo.(unless l7 was ordered)
This apply s to US cars only.